Sash-chain fastener.



PATENTED APR. '7. 1908.

J. H. SAYRES.

SASH CHAIN PASTBNER.

APPLICATION FILED NOV. 20, 1907,

JOHN H. SAYRES, OF BROOKLYN, NEW YORK.

SASH-CHAIN FASTENER.

Specification of Letters Patent.

Patented April 7, 1908.

Application filed November 20, 1907. Serial No. 403,009.

T 0 all whom it may concern:

Be it known that 1, JOHN H; SAYnEs, a citizen of the United StatesofAnierica, residing in the borough of Brooklyn, in the county of Kingsand State of New York, have invented certain new and useful Improvements in Sash Chain Fasteners, of which the following is aspecification.

My invention relates to sash chain fasteners and has-as its object toprovide a simple, com act and efficient device composed of a sing e partof sufficient strength to be used in connection with sashes of allsizes.

My invention is illustrated in the accompanying drawings in which Figure1 is a section of a sash showing my fastener applied to the chain; Fig.2 is a side elevation thereof, and Fig. 3 is a perspective of thefastener'alone.

Coil or ring fasteners for sash cords or chains have been employedheretofore, but either, where a cord is used, the coil is utilizedmerely as a washer, a knot being inserted between two spires of. thecoil and these are apt to separate and let the cord through understrain, or when a chain is used its terminal link is threaded onto aring, which unless of exceptional strength, is apt to pull out u iderstrain like a hairpin and let the chain through in the same way. Thesedisadvantages l overcome by utilizing a coil fastener but modifying itsconstruction and application in a manner'exemplified in the drawing. Myobject is to distribute the strain of the chain over all the spires ofthe coil so as to utilize their combined strength. This I accomplish bypassing the chain 2 through the coil lengthwise of its axis andthreading a link on one ofits outer spires, preferably the outermostspire 3 as shown, so that the chain or its terminal link 1 shown, liespractically horizontally across the inner face of the inner spires 4 ofthe coil. lt will be apparent at once that the pull of the weightapplied to the other end of the chain is borne by the entire number ofspires across which the chain or one of its links lies.

While a perfect coil may be used, the link does not lie fiat against thespires 4 unless it is somewhat bent at its loop. Consequently,

inasmuch as this weakens the link, I prefer to flatten at 3 the spire onwhich the link is threaded, to accommodate the looped end of the latterand thus permit its shank to rest against the spires 4 withoutdeformation. This flattening of the s ire has a further function in thatwhen the link reaches the point 3 the spires which have been sprungapart during the threading of the link, close again and the free playlink is thus confined to the flattened portion. working off of the coilis thus prevented.

The device is not only inexpensive to make but is simply applied, sinceall that is necessary after the end of the chain has been pulled throughthe hole B, is to pass it through the coil and thread its last link ontothe spire 3 until it reaches the flattened portion 3 A show or light rapwith a ham iner will then permanently seat it in the hole I C withoutthe use of any screws or nails I claim as my invention:

1. A fastener for sash chains comprising a coil having a spire flattenedto receive a chain link, substantially as described.

2. A fastener for sash chains comprising a coil having a terminal spireflattened to receive a chain link, substantially as described.

3. A fastener for sash chains comprising a coil having a portionintermediate its ends flattened to receive a chain link, substantiallyas described.

4. A sash chain fastener, comprising a coil in combination with a sashchain, one end of which extends into said coil lengthwise of its axisand is secured to a spire thereof as and for the purposedescribed.

5. A sash chain fastener comprising a coil having a flattened spire incombination with a sash chain passing through said coil and securedthereto by a link threaded on said flat-' toned spire, substantially asdescribed.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

JOHN H. SAYR Witnesses:

WILLIAM ABBE, L. H. (more.

Any possibility of its

